Fabricated bridge anti-collision guardrail

Abstract

The utility model relates to the technical field of bridge guardrails, in particular to an assembly type bridge anti-collision guardrail which comprises a standard knot anti-collision guardrail body and a boundary beam, the standard knot anti-collision guardrail body is assembled on the boundary beam of an L-shaped structure, a groove is formed in the bottom of the standard knot anti-collision guardrail body, and a shear key of a vertical structure is arranged in the middle of the boundary beam. A plurality of sets of penetrating connecting holes are formed in the standard knot anti-collision guardrail assembly in a staggered mode, threaded steel nails are assembled in the connecting holes, and nuts matched with the threaded steel nails are pre-embedded in one ends of the connecting holes. By prefabricating the standard knot anti-collision guardrail and adopting an assembly type connection mode, the construction process is simplified, the construction efficiency is improved, the assembly process can be greatly simplified, the construction time and the labor cost are reduced, meanwhile, the stability and the attractiveness of the structure are ensured, the quality and the construction efficiency of the anti-collision guardrail are improved, and the construction cost is reduced. The method is suitable for various bridge and road scenes, and has good expandability and adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge guardrails, and in particular to an assembled bridge anti-collision guardrail. Background Art

[0002] At present, the field of bridges is developing rapidly. Traditional concrete anti-collision guardrails are usually cast on site, but this construction method requires a lot of concrete pouring work on site, which takes a long time and is costly. It is not conducive to the rapid progress of construction, occupies a large area of ​​the surrounding construction site and is not conducive to green environmental protection. The quality of components is also difficult to guarantee. In the context of sustainable development, prefabricated bridges can accurately control the use of component materials and reduce waste during the production process. The quality of prefabricated components produced in the factory is easier to control. Making anti-collision guardrails into standard sections and transporting them to the site for assembly is conducive to solving the problems of transportation difficulties and long construction periods due to large components and high mass. Utility Model Content

[0003] In view of the existing deficiencies, the utility model provides an assembled bridge anti-collision guardrail, which solves the problems that the existing bridge anti-collision guardrail has a long construction period and high cost through on-site casting, is not conducive to the rapid progress of construction, occupies a large amount of surrounding construction site and is not conducive to green environmental protection.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A prefabricated bridge anti-collision guardrail comprises a standard section anti-collision guardrail and a side beam, the standard section anti-collision guardrail is assembled on an L-shaped structural side beam, a groove is provided at the bottom of the standard section anti-collision guardrail, a shear key of a vertical structure is arranged at the middle position of the side beam, the standard section anti-collision guardrail is inserted on the shear key through the groove, a plurality of groups of penetrating connecting holes are staggeredly provided inside the assembly of the standard section anti-collision guardrail, a plurality of groups of through holes are provided on the shear key and their positions correspond to the connecting holes, a threaded steel nail is assembled inside the connecting hole, a nut matching the threaded steel nail is pre-embedded at one end of the connecting hole, the threaded steel nail simultaneously passes through the connecting hole on the standard section anti-collision guardrail and the through hole on the shear key and is screwed together with the nut.

[0006] Furthermore, one end of the standard section anti-collision guardrail is prefabricated with a plug-in key protruding outward, the plug-in key is 65 cm high, 4 cm wide and 10 cm deep, and the other end of the standard section anti-collision guardrail is provided with a plug-in groove matching the plug-in key.

[0007] Furthermore, two groups of lifting holes are symmetrically preset on the upper inner side of the standard section anti-collision guardrail.

[0008] Furthermore, the standard section anti-collision guardrail is arranged to be 2m per section, the groove depth is 65cm, the shear key width is 15cm, and the height is 65cm.

[0009] Furthermore, circular holes with a diameter greater than that of the threaded steel nails are provided at both ends of the connecting hole, with a depth of 2 cm, and the inner walls of the circular holes are roughened.

[0010] Furthermore, two groups of circular positioning blocks are respectively arranged on the left and right sides of the bottom of the standard section anti-collision guardrail, and two groups of positioning grooves corresponding to the positioning blocks are respectively opened on the side beams on the left and right sides of the shear key.

[0011] Furthermore, a drainage hole is provided on the left end surface of the side beam, and the position of the drainage hole corresponds to the positioning groove and is connected thereto.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model prefabricates standard section anti-collision guardrails and adopts an assembled connection method to solve the problem of long on-site pouring period and high cost, simplifies the construction process, and improves construction efficiency. It can greatly simplify the assembly process, reduce construction time and labor costs, and at the same time ensure the stability and aesthetics of the structure, and improve the quality and construction efficiency of the anti-collision guardrail. It is suitable for various bridge and road scenes and has good scalability and adaptability.

[0014] 2. The design of the plug-in key and the plug-in slot of the utility model enables adjacent standard section anti-collision guardrails to be quickly and accurately connected. This connection method simplifies the installation process, improves construction efficiency, and ensures the accuracy and stability of the guardrail connection. When the plug-in key is inserted into the plug-in slot, the adjacent standard section anti-collision guardrails form a tight mechanical connection, which helps to transmit and disperse the impact force, thereby enhancing the safety of the entire guardrail system.

[0015] 3. There are two sets of lifting holes symmetrically preset on the upper side of the standard section anti-collision guardrail. The set lifting holes provide lifting points for the standard section anti-collision guardrail, which is convenient for using lifting equipment to lift the standard section anti-collision guardrail and install it to the designated location, which can greatly improve work efficiency. At the same time, the lifting holes reduce the material used for the standard section anti-collision guardrail and reduce its dead weight.

[0016] 4. The standard section anti-collision guardrail in the utility model is set to 2m per section, which is convenient for manufacturing, transportation and installation, and is also convenient for flexible adjustment at the construction site to adapt to the different lengths and curve requirements of the bridge. The groove depth is 65cm, the shear key width is 15cm, and the height is 65cm, which is conducive to connecting standard section anti-collision guardrails of different sections into a whole, ensuring the stability of the connection, and improving the overall stability of the standard section anti-collision guardrail.

[0017] 5. By matching the positioning block with the positioning slot, the accurate positioning of the standard section anti-collision guardrail during installation can be ensured, which can reduce installation errors and improve construction quality. The combination of the positioning block and the positioning slot increases the connection stability between the standard section anti-collision guardrail and the side beam, and can effectively resist deformation when subjected to external force impact, keeping the standard section anti-collision guardrail stable. The design of the positioning block and the positioning slot simplifies the installation process. Construction personnel only need to align the positioning block with the positioning slot to quickly complete the positioning of the standard section anti-collision guardrail, which improves construction efficiency.

[0018] 6. A drainage hole is provided on the left end face of the side beam, and the position of the drainage hole corresponds to and is connected to the positioning groove. The drainage hole is provided to quickly drain the water accumulated in the gap, which can prevent water from accumulating in the gap, avoid the stability of the connection structure affected by water corrosion, and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the standard section anti-collision guardrail and the side beam in the utility model.

[0021] Figure 3 It is a schematic diagram of the disassembled structure of the standard section anti-collision guardrail and the side beam in the utility model.

[0022] Figure 4 It is a schematic diagram of the connection state of the standard section anti-collision guardrail in the utility model.

[0023] Figure 5 It is a structural schematic diagram of the plug-in slot in the utility model.

[0024] Figure 6 It is a schematic diagram of the local structure of the side beam in the utility model.

[0025] Figure 7 It is a schematic diagram of the structural positions of the through holes and drainage holes on the side beams of the utility model.

[0026] In the figure: 1. Standard section anti-collision guardrail; 2. Side beam; 3. Lifting hole; 4. Threaded steel nail; 5. Groove; 6. Connecting hole; 7. Nut; 8. Plug-in key; 9. Positioning block; 10. Plug-in slot; 11. Shear key; 12. Positioning slot; 13. Through hole; 14. Drainage hole. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example:

[0029] like Figures 1 to 7 As shown, an assembled bridge anti-collision guardrail comprises a standard section anti-collision guardrail 1 and a side beam 2. The standard section anti-collision guardrail 1 is assembled on the L-shaped structure side beam 2. A groove 5 is provided at the bottom of the standard section anti-collision guardrail 1. A shear key 11 of a vertical structure is provided in the middle position of the side beam 2. The standard section anti-collision guardrail 1 is inserted on the shear key 11 through the groove 5. The standard section anti-collision guardrail 1 is assembled with multiple groups of penetrating connecting holes 6 staggered inside. The shear key 11 is provided with multiple groups of through holes 13 and their positions correspond to the connecting holes 6. Threaded steel nails 4 are assembled inside the connecting holes 6. One end of the connecting hole 6 is pre-embedded with a nut 7 matching the threaded steel nail 4. The threaded steel nail 4 simultaneously passes through the connecting hole 6 on the standard section anti-collision guardrail 1 and the through hole 13 on the shear key 11 and is screwed and connected with the nut 7. This design solves the problems that the existing bridge anti-collision guardrail has a long construction period and high cost through on-site casting, which is not conducive to the rapid progress of construction, occupies a large amount of surrounding construction site and is not conducive to green environmental protection.

[0030] One end of the standard section anti-collision guardrail 1 is prefabricated with a plug key 8 protruding outward, the plug key 8 is 65 cm high, 4 cm wide and 10 cm deep, and the other end of the standard section anti-collision guardrail 1 is provided with a plug slot 10 that matches the plug key 8. The design of the plug key 8 and the plug slot 10 enables adjacent standard section anti-collision guardrails 1 to be quickly and accurately docked. This connection method simplifies the installation process, improves construction efficiency, and ensures the accuracy and stability of the guardrail connection. When the plug key 8 is inserted into the plug slot 10, the adjacent standard section anti-collision guardrails 1 form a tight mechanical connection, which helps to transmit and disperse the impact force, thereby enhancing the safety of the entire guardrail system.

[0031] Two sets of lifting holes 3 are symmetrically preset on the upper side of the interior of the standard section anti-collision guardrail 1. The provided lifting holes 3 provide lifting points for the lifting of the standard section anti-collision guardrail 1, making it easy to use lifting equipment to lift the standard section anti-collision guardrail 1 and install it to a designated position, which can greatly improve work efficiency. At the same time, the lifting holes 3 reduce the material used for the standard section anti-collision guardrail 1 and reduce its dead weight.

[0032] The standard section anti-collision guardrail 1 is set to 2m per section, which is convenient for manufacturing, transportation and installation, and is also convenient for flexible adjustment at the construction site to adapt to the different lengths and curve requirements of the bridge. The groove 5 is 65cm deep, the shear key 11 is 15cm wide and 65cm high, which is conducive to connecting standard section anti-collision guardrails 1 of different sections into a whole, ensuring the stability of the connection, and improving the overall stability of the standard section anti-collision guardrail 1.

[0033] Circular holes with a diameter greater than that of the threaded steel nails 4 are provided at both ends of the connecting hole 6, with a depth of 2 cm. The inner wall of the circular hole is roughened. This design facilitates the rapid installation of the threaded steel nails 4. After the standard section anti-collision guardrail 1 and the shear keys 11 on the side beam 2 are assembled, concrete is used to seal both ends of the connecting hole 6 to prevent oxidation of the spiral steel nails and ensure the stability of the connection part, and to make the standard section anti-collision guardrail 1 more beautiful as a whole.

[0034] Two groups of circular positioning blocks 9 are respectively arranged on the left and right sides of the bottom of the standard section anti-collision guardrail 1, and two groups of positioning grooves 12 corresponding to the positioning blocks 9 are respectively opened on the side beams 2 on the left and right sides of the shear key 11. By matching the positioning blocks 9 with the positioning grooves 12, the accurate positioning of the standard section anti-collision guardrail 1 during installation can be ensured, which can reduce installation errors and improve construction quality. The combination of the positioning blocks 9 and the positioning grooves 12 increases the connection stability between the standard section anti-collision guardrail 1 and the side beams 2, and can effectively resist deformation when impacted by external forces, thereby maintaining the stability of the standard section anti-collision guardrail 1. The design of the positioning blocks 9 and the positioning grooves 12 simplifies the installation process. Construction personnel only need to align the positioning blocks 9 with the positioning grooves 12 to quickly complete the positioning of the standard section anti-collision guardrail 1, thereby improving construction efficiency.

[0035] A drainage hole 14 is provided on the left end surface of the side beam 2, and the position of the drainage hole 14 corresponds to and is connected to the positioning groove 12. The drainage hole 14 is provided to facilitate rapid drainage of the water accumulated in the gap, thereby preventing the water from accumulating in the gap, avoiding the stability of the connection structure affected by water corrosion, and extending the service life.

[0036] A 5mm expansion joint is provided between adjacent standard sections of anti-collision guardrails 1 to accommodate deformation caused by different temperatures and natural displacement.

[0037] The working principle of this assembled bridge anti-collision guardrail is as follows: first, cast and manufacture the side beam 2 at the construction site, transport the standard section anti-collision guardrail 1 to the site, lift the standard section anti-collision guardrail 1 through the lifting hole 3 and place it on the side beam 2, and align the groove 5 at the bottom of the standard section anti-collision guardrail 1 with the shear key 11 on the side beam 2. At the same time, the positioning block 9 at the bottom of the standard section anti-collision guardrail 1 is inserted into the positioning groove 12 on the side beam 2 to quickly position the standard section anti-collision guardrail 1. Then, screw the threaded steel nail 4 from one end of the connecting hole 6 on the first section of the standard section anti-collision guardrail 1, pass through the through holes 13 on the standard section anti-collision guardrail 1 and the side beam 2 in turn, and then connect to the nut 7 on the other end of the connecting hole 6 through a thread to fix the standard section anti-collision guardrail 1. After fixing, repeat the above steps to assemble the next standard section anti-collision guardrail 1, and make the plug-in slot 10 on it fit on the plug-in key 8 on the previous set of standard section anti-collision guardrails 1 to ensure the stable connection between the standard section anti-collision guardrails 1. When the standard section anti-collision guardrail 1 and the side beam 2 are assembled, the two ends of the threaded steel nail 4 are sealed with concrete to prevent the threaded steel nail 4 from oxidation and corrosion, prolong the service life, and enhance the stability of the overall structure.

[0038] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. An assembled bridge anti-collision guardrail, comprising a standard section anti-collision guardrail (1) and a side beam (2), characterized in that: The standard section anti-collision guardrail (1) is assembled on an L-shaped structural side beam (2); a groove (5) is provided at the bottom of the standard section anti-collision guardrail (1); a shear key (11) of a vertical structure is provided in the middle of the side beam (2); the standard section anti-collision guardrail (1) is inserted into the shear key (11) through the groove (5); a plurality of groups of penetrating connection holes (6) are staggeredly provided inside the assembly of the standard section anti-collision guardrail (1); a plurality of groups of through holes (13) are provided on the shear key (11) and their positions correspond to the connection holes (6); a threaded steel nail (4) is installed inside the connection hole (6); a nut (7) matching the threaded steel nail (4) is pre-embedded at one end of the connection hole (6); the threaded steel nail (4) simultaneously passes through the connection hole (6) on the standard section anti-collision guardrail (1) and the through hole (13) on the shear key (11) and is screwed and connected with the nut (7).

2. The assembled bridge anti-collision guardrail according to claim 1 is characterized in that: One end of the standard section anti-collision guardrail (1) is prefabricated with a plug key (8) protruding outward, the plug key (8) is 65 cm high, 4 cm wide and 10 cm deep, and the other end of the standard section anti-collision guardrail (1) is provided with a plug slot (10) matching the plug key (8).

3. The assembled bridge anti-collision guardrail according to claim 1 is characterized in that: Two groups of hanging holes (3) are symmetrically preset on the upper inner side of the standard section anti-collision guardrail (1).

4. The assembled bridge anti-collision guardrail according to claim 1 is characterized in that: The standard section anti-collision guardrail (1) is arranged in sections of 2 m, the groove (5) has a depth of 65 cm, and the shear key (11) has a width of 15 cm and a height of 65 cm.

5. The assembled bridge anti-collision guardrail according to claim 1 is characterized in that: The two ends of the connecting hole (6) are provided with circular holes with a diameter greater than that of the threaded steel nail (4) and a depth of 2 cm. The inner wall of the circular hole is roughened.

6. The assembled bridge anti-collision guardrail according to claim 1 is characterized in that: Two groups of circular positioning blocks (9) are respectively arranged on the left and right sides of the bottom of the standard section anti-collision guardrail (1), and two groups of positioning grooves (12) corresponding to the positioning blocks (9) are respectively opened on the side beams (2) on the left and right sides of the shear key (11).

7. The assembled bridge anti-collision guardrail according to claim 6 is characterized in that: A drainage hole (14) is provided on the left end surface of the side beam (2), and the position of the drainage hole (14) corresponds to the positioning groove (12) and is in communication with the positioning groove (12).

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